Light source apparatus and projector

ABSTRACT

A light source apparatus includes a light source apparatus body that emits light, and a light source apparatus housing that houses the light source apparatus body. The light source apparatus body includes a connector that electrically connects the light source apparatus body to a light source driver. The light source apparatus housing includes a handle used to grasp the light source apparatus and a connector holder that holds the connector. The handle is connected to the connector holder.

BACKGROUND

1. Technical Field

The present invention relates to a light source apparatus and aprojector.

2. Related Art

There has been a light source apparatus including a light sourceapparatus body having a light source lamp and a reflector aligning lightfluxes emitted from the light source lamp in a fixed light-exitingdirection and a light source apparatus housing that houses the lightsource apparatus body, and a projector using such a light sourceapparatus (see JP-A-2005-284120, for example).

The light source apparatus described in JP-A-2005-284120 furtherincludes a connector for electrically connecting the light sourceapparatus to a light source driver. The connector is connected to aconnector provided in an enclosure of the projector when the lightsource apparatus is attached to the enclosure of the projector.

The light source apparatus housing includes protrusions to be graspedwhen the light source apparatus is removed from the projector. A user ofthe projector grasps the protrusions and removes the light sourceapparatus from the enclosure of the projector.

The light source apparatus described in JP-A-2005-284120, however, has aproblem resulting from the fact that the position of the connector isspaced apart from the position of the protrusions. That is, when theuser of the projector grasps the protrusions to remove the light sourceapparatus, the force applied to the light source apparatus is notsufficiently transferred to the connector. The connector is thereforedifficult to be pulled out and hence the light source apparatus isdifficult to be removed from the projector.

SUMMARY

An advantage of some aspects of the invention is to provide an easilyremovable light source apparatus that allows the force applied by a userto be sufficiently transferred to a connector, and a projector.

A light source apparatus according to an aspect of the inventionincludes a light source apparatus body that emits light, the lightsource apparatus body includes a connector that electrically connectsthe light source apparatus body to a light source driver and a lightsource apparatus housing that houses the light source apparatus body,the light source apparatus housing includes a handle used to grasp thelight source apparatus and a connector holder that holds the connector.The handle is connected to the connector holder.

According to such a configuration, since the handle that is grasped whenthe light source apparatus is removed is connected to the connectorholder that holds the connector, the force applied by the user can besufficiently transferred to the connector, whereby the connector can bereadily pulled out. Accordingly, the light source apparatus can bereadily removed.

In the above aspect of the invention, the connector preferably includesa protrusion protruding in a direction that intersects the directionalong which the connector is pulled out. The connector holder preferablyincludes a supporting portion that supports the protrusion. Thesupporting portion preferably includes a recess in which the protrusionmoves along the pulling-out direction and fits, and a through hole thatpasses through to the recess. The handle preferably includes a shaftportion to be inserted into the through hole. The protrusion ispreferably locked with the shaft portion, and at least part of theprotrusion is preferably located, relative to the shaft portion, towardthe pulling-out direction.

According to such a configuration, when a user grasps the handle andapplies a force in the direction along which the connector is pulledout, the force applied by the user acts on the shaft portion of thehandle also in the direction along which the connector is pulled out.Since at least part of the protrusion of the connector is located,relative to the shaft portion, toward the direction along which theconnector is pulled out, the force applied to the shaft portion acts onthe protrusion also in the direction along which the connector is pulledout and hence serves to pull out the connector. Therefore, the forceapplied by the user can be directly transferred to the connector,whereby the light source apparatus can be more readily removed.

To locate at least part of the protrusion, relative to the shaftportion, toward the direction along which the connector is pulled out,for example, a recess that is concave toward the direction along whichthe connector is pulled out is provided in the supporting portion, andthe shaft portion is disposed on the opposite side of the protrusion tothe direction along which the connector is pulled out. Thisconfiguration allows the protrusion to be sandwiched between the recessand the shaft portion.

Alternatively, for example, a hole may be formed in the protrusion inthe position that corresponds to the through hole formed in thesupporting portion, and the shaft portion is inserted into the throughhole and the hole formed in the protrusion.

In the above aspect of the invention, the handle preferably has a shapeextending along the light source apparatus housing and has shaftportions on opposite sides of the light source apparatus housing, theshaft portions being parallel to each other but having different centralaxes, and each of the shaft portions is preferably rotatably supportedby the light source apparatus housing.

According to such a configuration, since the shaft portions are parallelto each other but have different central axes, the handle is twistedwhen the handle is rotated by applying a load such that each shaftportion is rotated. The handle will return to the original position whenthe applied load is removed.

Therefore, for example, when the handle is configured to stand towardthe direction along which the connector is pulled out, applying a loadto rotate and incline the handle allows the size of the overall lightsource apparatus to be reduced. Further, since the handle returns to theoriginal position, that is, the standing position oriented in thepulling-out direction, when the applied load is removed, the userreadily grasps the handle when the user uses it.

A projector according to another aspect of the invention includes thelight source apparatus described above, a optical modulator thatmodulates light outputted from the light source apparatus in accordancewith input image information to form image light, and a projectionoptical apparatus that enlarges and projects the image light formed bythe optical modulator.

In the above aspect of the invention, since the projector includes thelight source apparatus described above, the same advantageous effect asthat of the light source apparatus described above is provided.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention will now be described with reference to the accompanyingdrawings, wherein like numbers reference like elements.

FIG. 1 is a diagram showing a schematic configuration of a projector.

FIG. 2 is an exploded perspective view of a light source apparatusviewed from a diagonally front side.

FIG. 3 is an exploded perspective view of the light source apparatusviewed from a diagonally rear side.

FIG. 4 shows a first housing, a second housing, and an urging memberintegrated with one another and viewed from a diagonally rear side.

FIG. 5 is a cross-sectional view of the light source apparatus takenalong an XY plane.

FIG. 6 shows a handle housed in a lamp housing.

DESCRIPTION OF EXEMPLARY EMBODIMENTS

An embodiment of the invention will be described below with reference tothe drawings.

Schematic Configuration of Projector

FIG. 1 is a diagram showing a schematic configuration of a projector 1.

The projector 1 modulates light emitted from a light source inaccordance with image information to form a color image (image light)and enlarges and projects the color image on a screen or any otherprojection surface (not shown). The projector 1 includes a substantiallybox-shaped outer enclosure 2, a projection lens 3, and an optical unit4, as shown in FIG. 1.

The projection lens 3 as a projection optical apparatus is comprised ofa combined lens including a set of lenses, and enlarges and projects acolor image formed by the optical unit 4, which will be described later,on a screen or any other projection surface.

In FIG. 1, the space in the outer enclosure 2 other than the space forthe projection lens 3 and the optical unit 4 houses, for example, acooling unit 8 including an intake apparatus 81 that sucks air into theprojector 1, an exhaust apparatus 82 that exhausts the air in theprojector 1, and a cooling fan that cools the components in theprojector 1, a power supply unit 9 that supplies electric power to thecomponents in the projector 1, a ballast unit 10 (light source driver)that drives a light source 41, which will be described later, and acontrol unit 11 that controls the components in the projector 1.

The optical unit 4 forms a color image in accordance with imageinformation by optically processing light emitted from a light sourceunder the control of the control unit described above. The optical unit4 includes a light source apparatus 41, an illumination opticalapparatus 42, a color separation optical apparatus 43, a relay opticalapparatus 44, an optical apparatus 45, and an optical part enclosure 46that disposes the optical parts 41 to 45 in predetermined positions withrespect to an illumination optical axis A set in the optical partenclosure 46.

The light source apparatus 41 includes a light source apparatus body 41Ahaving a light source lamp 411 that emits light fluxes and a reflector412 that aligns the light fluxes emitted from the light source lamp 411in a fixed light-exiting direction, and a parallelizing concave lens 413that parallelizes the light fluxes, the light-exiting directions ofwhich are aligned by the reflector 412. The light fluxes parallelized bythe parallelizing concave lens 413 exit toward the illumination opticalapparatus 42.

The light source apparatus 41 further includes a lamp housing 414 thatis connected to the optical part enclosure 46 and houses the members 411to 413. The members 411 to 413, when housed and disposed in the lamphousing 414, are located in predetermined positions with respect to theoptical part enclosure 46 (the predetermined positions allow the opticalaxis of the light outputted from the light source apparatus 41 tocoincide with the illumination optical axis A set in the optical partenclosure 46). The light source apparatus 41 will be described later indetail.

The illumination optical apparatus 42 includes a first lens array 421, asecond lens array 422, a polarization conversion element 423, and asuperimposing lens 424. The first lens array 421 divides the lightoutputted from the light source apparatus 41 into a plurality ofsegmented light fluxes and focuses the divided light fluxes in thevicinity of the second lens array 422. Each of the segmented lightfluxes outputted from the second lens array 422 is incident on thepolarization conversion element 423 in such a way that the central axis(principal ray) of the segmented light flux is oriented perpendicular tothe plane of incidence of the polarization conversion element 423, wherethe segmented light flux is converted into substantially one type oflinearly polarized light flux and outputted. The plurality of segmentedlight fluxes that have exited from the polarization conversion element423 as linearly polarized light fluxes and passed through thesuperimposing lens 424 are superimposed on three optical modulators 451,which will be described later, in the optical apparatus 45.

The color separation optical apparatus 43 includes two dichroic mirrors431, 432 and a reflection mirror 433, and serves to separate theplurality of segmented light fluxes outputted from the illuminationoptical apparatus 42 into red, green, and blue three color light fluxes.

The relay optical apparatus 44 includes a light incident-side lens 441,a relay lens 443, and reflection mirrors 424, 444, and serves to guidethe color light fluxes separated by the color separation opticalapparatus 43 to optical modulators 451, which will be described later,in the optical apparatus 45.

The optical apparatus 45 modulates incident light in accordance withimage information to form a color image. The optical apparatus 45includes three optical modulators 451 (optical modulator for red light451R, optical modulator for green light 451G, and optical modulator forblue light 451B), a light incident-side polarizer 452 disposed upstreamof each of the optical modulators 451 in the optical path, a lightexiting-side polarizer 453 disposed downstream of each of the opticalmodulators 451 in the optical path, and a cross dichroic prism 454.

Each of the light incident-side polarizers 452 transmits only lighthaving a polarization direction substantially the same as thepolarization direction aligned by the polarization conversion element423 and absorbs the rest of the light. The light incident-side polarizer452 is formed by attaching a polarization film on a light-transmissivesubstrate.

Each of the optical modulators 451 encapsulates and seals a liquidcrystal material, which are electro-optic substances, between a pair oftransparent glass substrates, and modulates the polarization directionof the light outputted from the corresponding light incident-sidepolarizer 452 by controlling the orientation of the liquid crystalmaterial using a drive signal from the control unit described above.

Each of the light exiting-side polarizers 453 has substantially the samefunction as that of the light incident-side polarizer 452, and transmitspart of the light modulated by the corresponding optical modulator 451that is polarized in a fixed direction and absorbs the rest of thelight.

The cross dichroic prism 454 combines the color light fluxes outputtedfrom the light exiting-side polarizers 453 to form a color image. Thecross dichroic prism 454 is formed by bonding four rectangular prismsand thus has a substantially square shape when viewed from above. Twodielectric multilayer films are formed along the interfaces betweenthese bonded rectangular prisms. The dielectric multilayer filmstransmit the color light flux that has exited from the optical modulator451G and passed through the corresponding light exiting-side polarizer453, whereas reflecting the color light fluxes that have exited from theoptical modulators 451R and 451B and passed through the correspondinglight exiting-side polarizers 453. The cross dichroic prism 454 thuscombines the color light fluxes to form a color image. The color imageformed by the cross dichroic prism 454 is enlarged and projected by theprojection lens 3 described above.

Detailed Configuration of Light Source Apparatus

FIG. 2 is an exploded perspective view of the light source apparatus 41viewed from a diagonally front side. FIG. 3 is an exploded perspectiveview of the light source apparatus 41 viewed from a diagonally rearside. In the following description to be made with reference to FIGS. 2and 3, the illumination optical axis A (see FIG. 1) is called a Z axisand two axes perpendicular to the Z axis are called X and Y axes. Thesame thing holds true in the drawings following FIGS. 2 and 3.

The light source apparatus body 41A includes not only the light sourcelamp 411 and the reflector 412 described above but also a substantiallybox-shaped connector 415 connected to respective lead wires 411A in thelight source lamp 411, as shown in FIGS. 2 and 3.

The connector 415 is intended to electrically connect the ballast unit10 to the light source apparatus 41. Specifically, the light sourceapparatus 41 is attached to the optical part enclosure 46 (see FIG. 1)so that the light source apparatus 41 is connected to a connector (notshown) provided in the optical part enclosure 46, and the connectionallows electric power to be supplied from the ballast unit 10 to thelight source lamp 411.

The lamp housing 414 as a light source apparatus housing includes afirst housing 5 disposed on the side in a light-exiting direction Balong which the light from the light source apparatus body 41A exits (onthe +Z-axis side), a second housing 6 disposed on the side in thedirection opposite to the light-exiting direction B (on the −Z-axisside), and an urging member 7 interposed between the first housing 5 andthe second hosing 6, as shown in FIGS. 2 and 3.

The first housing 5 is a member that is shaped into a substantiallyrectangular tube and covers the front side (+Z-axis side) of the lightsource apparatus body 41A. A substantially circular opening 51 is formedin the front surface (the surface on the +Z-axis side) of the firsthousing 5 as shown in FIG. 2, and the parallelizing concave lens 413fits in the opening 51 and is fixed therein.

Two extending potions 52 are formed on the front side of the uppersurface (the surface on the +Y-axis side) of the first housing 5 on bothends thereof in the X-axis direction. Each of the two extending potions52 first extends upward (in the +Y-axis direction) and then extendsforward. An inserting hole (not shown) is formed in a substantiallycentral portion of the upper surface of each of the extending portions52, and the light source apparatus body 41A is fixed to the optical partenclosure 46 by driving screws 53 inserted into the inserting holes intothreaded holes (not shown) provided in the optical part enclosure 46.

Further, a substantially rectangular frame-like opening 54 is formed inthe rear end (the end on the −Z-axis side) of the first housing 5, asshown in FIG. 3. First fixing portions 541 to be fixed to the secondhousing 6 are formed at the four corners of the opening 54. A threadedhole 541A is formed along the Z-axis direction in each of the firstfixing portions 541.

The second housing 6 is a member that has a substantially U-shaped crosssection and covers the upper side, the lower side (the −Y-axis side),and the rear side of the light source apparatus body 41A. Second fixingportions 61 to be fixed to the first housing 5 are provided in the frontend of the second housing 6 in the positions that correspond to thefirst fixing portions 541. Holes 61A are formed in the second fixingportions 61 in the positions that correspond to the threaded holes 541A.

The urging member 7 is a member that is shaped into a substantiallyrectangular frame and urges the light source apparatus body 41A towardthe first housing 5. Sandwiched portions 71 to be sandwiched between thefirst fixing portions 541 and the second fixing portions 61 are providedat the four corners of the urging member 7. Holes 71A are formed in thesandwiched portions 71 in the positions that correspond to the threadedholes 541A and the holes 61A.

The first housing 5, the second housing 6, and the urging member 7 areintegrated by driving four screws 417 (see FIG. 4) into the threadedholes 541A through the holes 61A and the holes 71A.

Connector Holding Structure

FIG. 4 shows the integrated first housing 5, second housing 6, andurging member 7 viewed from a diagonally rear side. FIG. 5 is across-sectional view of the light source apparatus 41 taken along an XYplane.

The connector 415 has two substantially box-shaped protrusions 415A and415B that protrude from both ends of the connector 415 along the Z-axisdirection, as shown in FIG. 3. That is, the protrusions 415A and 415Bprotrude in a direction that intersects a direction C along which theconnector 415 is pulled out (+Y-axis direction).

The first housing 5 includes not only the components 51 to 54 describedabove but also a connector holder 55 that holds the connector 415 and ahandle 56 used to grasp the light source apparatus 41, as shown in FIG.4.

The connector holder 55 is provided on a −X-axis-side surface of thefirst housing 5, and includes a first supporting portion 57 that firstextends rearward from the rear end of the opening 54 and then extends inthe −X-axis direction, and a second supporting portion 58 that extendsfrom the front end of the opening 54 in the −X-axis direction, as shownin FIG. 3.

The first supporting portion 57 supports the −Z-axis-side protrusion415A of the connector 415, and a hole 57A along the Z-axis directionhaving a substantially rectangular cross-sectional shape is formed inthe surface of the first supporting portion 57 that faces the connector415. The protrusion 415A is inserted into the hole 57A and supportedtherein.

The second supporting portion 58 supports the +Z-axis-side protrusion415B of the connector 415, and includes a facing portion 581 that facesthe connector 415, a connecting portion 582 that is substantiallyperpendicular to the facing potion 581 and to which the handle 56 isconnected, a restricting portion 583 that intersects the facing portion581 and the connecting portion 582 and is located above the protrusion415B, and an extending portion 584 that is located on the opposite sideof the protrusion 415B to the connecting portion 582 and extends in the−X-axis direction, as shown in FIGS. 4 and 5.

An upwardly concave recess 581A is formed in the facing portion 581, andthe protrusion 415B enters the recess 581A from below along thepulling-out direction C and fits therein.

A through hole 582A that passes through to the recess 581A is formed inthe connecting portion 582. That is, the second supporting portion 58corresponds to the supporting portion in an embodiment of the invention.

The restricting portion 583 is integrated with the facing portion 581and the connecting portion 582 and restricts the movement of theprotrusion 415B in the pulling-out direction C.

The extending portion 584 is provided along the lower edge of thethrough hole 582A and supports, along with the through hole 582A, thehandle 56 from below.

The handle 56 has a curved shape extending along the lamp housing 414and has substantially cylindrical shaft portions 561 and 562 on oppositesides of the lamp housing 414, the shaft portions 561 and 562 parallelto each other but having different central axes, as shown in FIGS. 4 and5. Specifically, the shaft portions 561 and 562 have central axesprovided along the X axis, located in the same position in the Z-axisdirection, and located in different positions in the Y-axis direction.

The shaft portion 561 is apart from the shaft portion 562 toward thepulling-out direction C, inserted into a hole 5A formed in a+X-axis-side surface of the first housing 5, and rotatably supported, asshown in FIGS. 2 and 5.

The shaft portion 562 is inserted into the through hole 582A in thesecond supporting portion 58, and rotatably supported by the throughhole 582A and the extending portion 584, as shown in FIG. 5. That is,the handle 56 is connected to the connector holder 55. When the shaftportion 562 is inserted into the through hole 582A, the protrusion 415Bthat has fitted in the recess 581A is caught by the recess 581A, therestricting portion 583, and the shaft portion 562. That is, the shaftportion 562 inserted into the through hole 582A locks the protrusion415B, and at least part of the protrusion 415B is located, relative tothe shaft portion 562, toward the direction C along which the connector415 is pulled out.

FIG. 6 shows the handle 56 housed in the lamp housing 414.

In the first housing 5, two reinforcing surfaces 521 are formed on therear surface (−Z-axis-side surface) of each of the extending portion 52,the reinforcing surfaces 521 extending rearward to reinforce theextending portion 52, as shown in FIG. 6. For the reinforcing surfaces521 extending from the −X-axis-side extending portion 52, the+X-axis-side reinforcing surface 521A differs from the other reinforcingsurface 521 in that the +X-axis-side reinforcing surface 521A has asubstantially rectangular shape and a cutout 521B is formed in the upperend of the +X-axis-side reinforcing surface 521A.

To house the handle 56 in the lamp housing 414, a user of the projector1 grasps the handle 56 standing in the pulling-out direction C (see FIG.4) and moves the handle 56 along the +Z-axis direction so that thehandle 56 is rotated and inclined. The user further moves the handle 56in such away that the handle 56 fits in the cutout 521B of thereinforcing surface 521A and is housed in the lamp housing 414. In thisprocess, since the shaft portions 561 and 562 of the handle 56 havecentral axes that are parallel to each other but have different centralaxes, the handle 56 is twisted.

To use the handle 56, the user of the projector 1 moves the handle 56housed in the lamp housing 414 (see FIG. 6) in such a way that thehandle 56 disengages from the cutout 521B. When the handle 56 disengagesfrom the cutout 521B, the twisted handle 56 returns back to the standingposition oriented in the pulling-out direction C.

According to the present embodiment described above, the followingadvantageous effects are provided:

1. Since the handle 56 that is grasped when the light source apparatus41 is removed is connected to the connector holder 55 that holds theconnector 415, the force applied by the user can be sufficientlytransferred to the connector 415, whereby the connector 415 can bereadily pulled out. Accordingly, the light source apparatus 41 can bereadily removed.

2. Since the shaft portion 562 inserted into the through hole 582A locksthe protrusion 415B, and at least part of the protrusion 415B islocated, relative to the shaft portion 562, toward the direction C alongwhich the connector 415 is pulled out, the force applied by the user canbe directly transferred to the connector 415, whereby the light sourceapparatus 41 can be more readily removed.

3. Since the shaft portions 561 and 562 have central axes that areparallel to each other but have different central axes, applying a loadto the handle 56 to rotate and incline the handle 56 allows the size ofthe overall light source apparatus 41 to be reduced. Further, since thehandle 56 returns back to the standing position oriented in thepulling-out direction C when the applied load is removed, the user canreadily grasp the handle 56 when the user uses it.

Variations of Embodiment

The invention is not limited to the embodiment described above butencompasses variations, modifications, and other forms to the extentthat the advantage of some aspects of the invention can be achieved.

In the above embodiment, while the handle 56 is connected to theconnector holder 55 by inserting the shaft portion 562 into the throughhole 582A in the second supporting portion 58, the handle 56 may beconnected to the connector holder, for example, by fixing the handle 56to the connector holder with an adhesive. In essence, any otherconfiguration maybe employed as long as the handle is connected to theconnector holder.

In the above embodiment, while the recess 581A is formed to be upwardlyconcave, the recess 581A may be formed, for example, to be downwardlyconcave. In essence, any other configuration may be employed as long asthe protrusion fits in the recess along the direction along which theconnector is pulled out.

In the above embodiment, while the protrusion 415B that has fit in therecess 581A is caught by the recess 581A, the restricting portion 583,and the shaft portion 562, for example, a hole may be formed in theprotrusion in the position that corresponds to the through hole formedin the supporting portion and the shaft portion is inserted into thethrough hole and the hole formed in the protrusion. In essence, anyother configuration may be employed as long as the shaft portioninserted into the through hole locks the protrusion and at least part ofthe protrusion is located, relative to the shaft portion, toward thepulling-out direction.

In the above embodiment, while the handle 56 has a curved shapeextending along the lamp housing 414, the handle 56 may have othershapes. For example, the handle 56 may be formed into a U shapeprotruding in the direction along which the connector is pulled out.

In the above embodiment, the shaft portions 561 and 562 of the handle 56have central axes that are provided along the X axis, located in thesame position in the Z-axis direction, and located in differentpositions in the Y-axis direction. Alternatively, for example, the shaftportions may have central axes that are provided along the X axis,located in the same position in the Y-axis direction, and located indifferent positions in the Z-axis direction. In essence, any otherconfiguration may be employed as long as the shaft portions are parallelto each other but have different central axes.

In the above embodiment, while the projector 1 includes the threeoptical modulators 451, the projector 1 may include an optical apparatusincluding two optical modulators or an optical apparatus including fouror more optical modulators.

In the above embodiment, while each of the optical modulators 451employs a configuration in which a pair of transparent glass substratesencapsulates and seals a liquid crystal material, which areelectro-optic substances, and incident light passes through the opticalmodulator 451, the configuration of the optical modulator 451 is notlimited thereto. For example, a liquid crystal panel configured toreflect incident light, a DMD (Digital Micromirror Device: a trademarkof Texas Instruments, USA), or other components may be used.

In the above embodiment, while the projector 1 including the lightsource apparatus 41 has been described by way of example, the lightsource apparatus according to an embodiment of the invention may be usedin a rear projector or other types of optical apparatus.

The invention can be applied to a light source apparatus, in particular,preferably applied to a light source apparatus used in a projector.

The entire disclosure of Japanese Patent Application No. 2008-054504,filed Mar. 5, 2008 is expressly incorporated by reference herein

1. A light source apparatus comprising: a light source apparatus bodythat emits a light, the light source apparatus body including aconnector that electrically connects the light source apparatus body toa light source driver; and a light source apparatus housing that housesthe light source apparatus body, the light source apparatus housingincluding a handle used to grasp the light source apparatus, and aconnector holder that holds the connector, wherein the handle isconnected to the connector holder.
 2. The light source apparatusaccording to claim 1, wherein the connector includes a protrusionprotruding in a direction that intersects the direction along which theconnector is pulled out, the connector holder includes a supportingportion that supports the protrusion, the supporting portion includes arecess in which the protrusion moves along the pulling-out direction andfits, and a through hole that passes through to the recess, the handleincludes a shaft portion to be inserted into the through hole, theprotrusion is locked with the shaft portion, and at least part of theprotrusion is located, relative to the shaft portion, toward thepulling-out direction.
 3. The light source apparatus according to claim1, wherein the handle has a shape extending along the light sourceapparatus housing and has shaft portions on opposite sides of the lightsource apparatus housing, the shaft portions being parallel to eachother but having different central axes, and each of the shaft portionsis rotatably supported by the light source apparatus housing.
 4. Aprojector comprising: the light source apparatus according to claim 1; aoptical modulator that modulates light outputted from the light sourceapparatus in accordance with input image information to form imagelight; and a projection optical apparatus that enlarges and projects theimage light formed by the optical modulator.
 5. The projector accordingto claim 4, wherein the connector includes a protrusion protruding in adirection that intersects the direction along which the connector ispulled out, the connector holder includes a supporting portion thatsupports the protrusion, the supporting portion includes a recess inwhich the protrusion moves along the pulling-out direction and fits, anda through hole that passes through to the recess, the handle includes ashaft portion to be inserted into the through hole, the protrusion islocked with the shaft portion, and at least part of the protrusion islocated, relative to the shaft portion, toward the pulling-outdirection.
 6. The projector according to claim 4, wherein the handle hasa shape extending along the light source apparatus housing and has shaftportions on opposite sides of the light source apparatus housing, theshaft portions being parallel to each other but having different centralaxes, and each of the shaft portions is rotatably supported by the lightsource apparatus housing.